Metallic drawing-rolls for fibrous material



(No Model.)

Y W. HINGHLIFFE. METALLIC DRAWING ROLLS FOR FIBROUS MATERIAL.

No. 527,553. Patented 055. 15, 1894.

l 4 wb zesses. fiwenhw UNITED STATES PATENT OFFICE.

WILLIAM HINOHLIFFE, OF HUNTSVILLE, ALABAMA.

METALLIC DRAWING-ROLLS FOR FIBROUS MATERIAL.

SPECIFICATION forming part of Letters Patent No. 527,553, dated October 16, 1894.

Application filed April 28, 1894.

. nection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object to improve that class of rolls having teeth, and wherein the centers of the rolls are adapted to be adj usted one toward the other according to the character, thickness or volume of the material being drawn and to prevent the teethbot-- toming, as it is called.

The pair of toothed rolls referred to are to take the place of the usual fluted roll and a leather or other covered roll located above and co-operating with it; and by the use of the pair of toothed rolls not only better work may be done but the cost of removing the leather covers may be obviated.

One part of my invention consists in a novel manner of adjusting one roll with relation to the other, and this part of my invention is important irrespective of the particular shape or trend of the teeth.

Figure 1 of the drawings shows a pair of drawing rolls supposed to be the front pair of a set of rolls,ernbodying my invention. Fig.

2 shows one of the washers detached; and Fig. 3 a section in the line m Fig. 1.

The roller stands A, A, and their boxes at for the-journals b of the'lower front roll B, are and may be all as usual, and said lower roll may be rotated in any manner commonly practiced in spinning machines or drawing heads.

The lower front roll B, as shown, has its teeth out slightly spiral or so that the teeth are at one end of the roll ahead of their opposite ends the thickness substantially of one tooth, and to enable a spirally toothed lower roll to intermesh with the teeth of a top roll as O, the latter must be correspondingly toothed, but inthe opposite direction, that is, one roll must be toothed right and the other left hand. The lower front roll has a tapering collar 11', preferably made as a part of and integral with it, and the top roll has a collar 0, but reversely tapered, and also fixed to it,

ny... 509,343. on model.)

one collar resting on the other. The lower front roll near its other end has a double tapered collar b and the top roll above it has a double tapered collar 0?, one of said col lars, (and as herein shown the collar 0 being made in two parts, one part, as 3, being adjustable toward and from the other part.

As herein shown, the top roll is threaded as at 2, and the part 3 made as a threaded tapered ring is screwed thereon, and between the said ring and the main fixed part of the collar 0 I interpose a seriesof thin washers 4., the extent of the intermeshing of the teeth of the rolls depending on the thickness of the pile of washers, the thinner the pile or mass of washers, the deeper the intermeshing, and vice versa.

It will be noticed that the teeth in my rolls are so made and of such depth that the spaces of one roll are entered by the ribs of the other rolls, but the ribs do not bottom in said spaces, and it will also be noticed that all the collars but one in my set of rolls are fixed and one half of the other collar is fixed, and that I do not effect the adjustment of my top roll vertically by moving the collars on the rolls, but by sliding the top roll longitudinally, the extent of said sliding being controlled or regulated by the movable ring forming part of one collar.

The collars constitute means for controlling the degree of intermeshing of one toothed roll with the other. I Y

My improved collars are useful in connection with rolls straight toothed.

The two part double tapered collars may be on either roll and work equally well.

By making one part of the double tapered collar longitudinally adjustable with relation to the other part, it is possible to by one adjustment control the extent of intermeshing of the teeth, thus saving much time from adjusting several collars on both rolls.

Having described my invention, what I claim, and desire to secure by Letters Patent,

IOO

meshingof the teeth of one roll with the teeth of the other roll, substantially as described.

2. A pairof toothed intermeshing rolls, each provided with a tapering fixed collar, and with a double tapered collar, one of said double tapered collars being made in two parts, one part adjustable toward and from the other, to thus increase or decrease the length of that collar, to thereby control the extent of the intermeshing of the teeth of one roll with the teeth of the other roll, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

W'ILLIAM I-IINCHLIFFE.

Witnesses:

J. W. MATTHEWS, GoRDoN FARISS. 

